Automatic glue applying machine



Feb. 6, 1945. r w. J, HAESSLER 2,368,759

'AUTOMATIC GLUE APPLYIfiG MACHINE A I Filed March712; 1942 11Sheets-Shut 2 7 Feb. 6, 1945. w HAESSLER 2,368,759

AUTOMATIC GLUE APPLYING MACHINE Fil ed March 12, 1942 11 Sheets-Shee t sIIIIIIIIIIIIIII II Feb. 6, 1945- w. J. HAESSLER AUTOMATIC GLUE APPLYINGMACHINE 11 Sheets-Sheet 4 Filed March 12, 1942 Feb. 6, 1945. w. J.HAESSLER 2,368,759

AUTOMATIC GLUE APPLYING MACHINE Filed March 12,1942 11 Sheets-Sheet sInn?- mism- Feb. 6, 1945. w J HAESSLER 2,368,759

AUTOMATIC GLUE APPLYING MACHINE Filed March 12, 1942 ll Sheets-Sheet 61945- w. J. HAE SSLER ,36

AUTOMATIC GLUE APPLYING MACHINE Filed March 12, 1942 ll Sheets-Sheet '7fave-1a? 1r J'Eear w-Febifl, 1945; A w. J. HAVESSLER 2,

AUTOMATIC GLUE APPLYING MACHINE Filed March 12, 1942 11 Sheets-Shet'BFell w. J. HAESSLER 2,368,759

AUTOMATIC GLUE APPLYING MACHINE Filed March 12, 1942 11 Sheets-sheaf. 9

' Feb. 6, 1945.

w. J. HAESSLER- 2,368,759 AUTOMATIC GLUE APPLYING MACHINE I Filed March12, 1942 ll Sheets-Sheet 1O 1945- w. J. HAESSLER AUTOMATIC GLUE APPLYINGMACHINE Filed March 12, 1 942 11 Sheets-Sheetll Patented Feb. 6, 1945UNITED STATES PATENT I oFFlcs AUTOMATIC GLUE APPLYING MACHINE William J.Haessler, Philadelphia, Pa., assignor 'to High Production Machine 00.,Inc., Philadelphia, Pa., a corporation of Pennsylvania Application March12, 1242, Serial No. 434,431

18 Claims.

'I'hisinve'ntion relates to gluing machines, and more particularly to anordinary gluing machine of the type employed in conjunction withlabelapplying or wrapping machines for placing upon the inner facing ofthe labelor wrapper the adhesive by which it is attached to a package.

An important object of the invention is the provision in this type ofmachine of an arrangement whereby cleansing of the glue-applying roller,or rollers, the gluing roll itself and of the remaining portions of themechanism is greatly simplified and the accessibility of the variouselements of the machine is greatly improved.

Another and important object of the invention is the provision in thistype of mechanism of means whereby the gluing mechanism may be bodilyshifted from an operative position where it overlies a glue receptacleto an inoperative position where it overlies, and is partially immersedin, a receptacle for a washing fluid, or to any position intermediatethe operative and inoperative po'sitions, thereby increasing theaccessibility of the mechanism and facilitating cleansing thereof.

Another object of the invention is the provision of a driving means forthe glue-applying roll and the liquid-applying means which is operablein all positions of the glue-applying roll.

A further object of the invention is the provision of a novel andimproved means for supplying glue to the glue-applying roll which isreadily acliustable to determine the amount of glue delivered to theglue-applying roll and which is so constructed that it serves as a meansfor agitating the glue in the glue-supplying reservoir without causingthe frothing thereof ordinarily resulting from the use of the ordinarypartially immersed glue-applying roll.

Another objectof the invention is the provision of a novel and improvedmeans for supplying the blanks to be glued to the gluing roll, includinga vacuumv pick-up having associated therewith means whereby the extentthrough which'vacuum is applied to the wrappers or the like may beregulatedand distributed across the width of the same.

A still further object of the invention is the provision of meanswhereby the vacuum pick-up may be regulated as to the point ofapplication of vacuum thereto so that the time of pick-up and release ofthe sheet may be closely regulated.

A still further object is the provisionaof means whereby the height ofan associated stack of wrappers or the like may be closely regulated tothus insure proper operation of the vacuumpickup means.

.These andother objects I attain .by the con struction shown in theaccompanying drawings wherein, for the purpose .of illustration, I haveshown a preferred embodiment of my invention and wherein: 7

Fig.1 is a. rear elevation of a gluing machine constructed in accordancewith my invention;

Fig. 2 is a side elevation thereof, portions of the casing being removedor broken away;

Fig. 3 'is a section on line 3-3, Figure 1;

Fig. 4 is asection on line 4-4, Fig. 1 and showing the elements of themachine in the position of rest;

Fig. 5 is a section on line 5-5, Fig. 1;

Fig. 6 is a fragmentary section on line 6-6, Fig. 3;

Fig. 7 is a section on line 'I-l, Fig. 1;

Figs. 8 and 9 are sections similar to that of Fig. 7 but showingadditional positions of the mechanism;

Fig. 10 is a fragmentary applying mechanism;

Fig. llis a section on line l|--I|, Fig. 10;

Fig. 12 is a fragmentary plan view of the paper feeding mechanism;

Fig. 13 is a section on line l3-l3 of Fig.12;

plan view of the glue- 1 Figs. 14, 15, 16 and 17 are sections on linesH-H,

l5l5, I8l8 and |'|--l'l of Fig. 13;

Fig. 18 is a section on line l8-l8, Fig. 12; Fig. 19 is a fragmentaryplan view, illustrating the construction of the paper feeler; Fig. 20 isa section on line 20-20, Fig. 5; Fig. 21 is an elevational view of thepneumatic feed roll adjustment; Fig. 22 is a section on line 2222, Fig.21; Fig. 23 is a sect'ion on line 23-23, Fig. 6; and Fig. 24 is asection on linen- 24, Fig. 23.. Referring now more ings, the machineillustrated operates as a feeder of glued blanks to a wrapping machine(not herein shown) supplying ping machine by a .conveyer belt Ill. Themachine comprises a base 15 mounting a suitable drive motor II fromwhich base arise frame eleparticularly to the draw- .glued blanks to thewrapand I! for con-.

'2 aacam an oscillatory 26 mounted in frame elements I2 and Irishactuating cam 2| and associated mechanisms hereinafter described.

Glue-milling mechanism The gluing mechanism (Flgs. 4 to 7) comprises astructure mounted at the front of the machine in frame elements l2 andI3 for oscillation, and

to which oscillation may be imparted by a handshown as comprising ashaft 30 upon which, at

the outer face of frame element |2, a gear 3| is mounted for rotation.Gear 3| through pinions 32 and 33 drives a shaft 34 (Figs. 3 and 6)which extends along arm 24 and at its outer end has 1 driving connectionas at 35 with gluing roll 26 and glue-applying roll 21. Ann 25 hasprojecting from its outer face a pivot pin 36 (Figs. and

connection, indicated generally at 39, includes a friction clutch 40arranged to yield in event anything materially resists'rotation of crank31 or oscillation of stub shafts 28 or their associated buckets 29. Thecrank of pivot pin 36 is connected to a crank 4| on the associated stubshaft 28 by a connecting rod 42, adjustable as to length. Crank 4| islonger than crank 31, with the result that stub shafts 26 oscillatealternately withdrawing buckets 29 from and moving them into prox imityto roll 21. The mechanism just described constitutes a .quadric-cranktrain of that type ordinarily employed when it is desired that motion ofa train actuated element be accelerated in one direction and theacceleration be, insofar as possible," uniform. In the present instance,the buckets in their movement approach the roll at a constantlyincreasing speed so that there is little tendency to spill the contentsuntil the movement toward the roll is abruptly checked. A substantiallycorresponding deceleration occurs in'opposite movement of the buckets.

As the buckets 29 are withdrawn from roll 21, they are submerged eitherin glue pan 43 or in the water pan 44 if the gluing'mechanism is ateither limit of its motion as determined by handwheel-operated worm 22and segment 23. The buckets have their outer ends in the form ofrelatively deep receptacles and have a sloping bottom wall which, whenthe bucket is in its elevated position, has its inner edge arranged inclose proximity to the roll 21, so that the glue elevated by the bucketis caused to flow against the surface of the roll 21 and thus betransferred to the roll 26. The extent of the approach of the inner edgeof the bucket to the roll 21 may be regulated through the adjustableconnecting rod 42 herei inbefore noted. Glue-applying roll 21 is, asillus-" is effected through hand screws 46 so that prox-,

imity of the applying roll to gluing roll '26, and accordingly thethickness of the applied glue layer upon the roll 26, may be regulated.The

arms 24 and support, above gluing roll 26, a shaft 41 upon which arepivotally mounted arms 43 rotatably supporting at their outer "ends theroll to hold the paper thereagainst during the glue-applying operation.

Once the paper has contacted properly withthe glue, the paper will tendto cling to the gluing roll 26 and for this reason the gluing roll isequipped with a series of stripper blades 50. Each stripper blade 50 hasits shank 5| rotatably mounted in a collar 52 adjustably secured to theshaft 41 as by means of thumbscrew 53. The surface of collar 53 hasformed therein a notch 54 against the upper wall of which bears the.free end of a spring 55 secured to the blade 50 adjacent the outer endof the shank thereof. As long as this spring is engaged with this wall,the stripper blade will bear with a given tension against the surface.of the-roll 26, the applied tension being regulated entirely by spring55. It will be noted that the inner end of the spring is. at a desiredmaximum tension, engagedwith what may be termed radially outer portionof the upper end wall of notch 54. 'If any attempt is made to increasethe tension of the spring beyond this desired maximum as, for examplabyloosening thumb screw 53 and rotating the collar 52 clockwise, thespring will recede from the notch 54 and will cease to apply itspressure to the blade and will hold it away from the surface of theroll. The holding feature of the constructionis highly important in anordinary machine of this character in that probably a dozen stripperblades will be employed. In an ordinary structure where movement of thestripper blade to an inoperative position involves a. change in thespring setting, adjustment of the tension of blades newly applied tothe'roll is essential. If, on the other hand, unused blades are left incontactwith the roll they must be cleaned as frequently as thoseactually used in the stripping operation. When the spring isin thegroove butout of engagement with the end wall thereof, all pressure isremoved from the blade. This structure serves to prevent damage to therolls quite commonly resulting In its operativeposition, shown in solidlines in Fig. 7, the guide roll 49 is driven through a gear 56, securedto the shaft51 of roll 26 at the inner face of the arm 24, and a pinion58 secured to the shaft of guide roll 49 (see Figs. 10

and 11).

- During operation of- 'the machine, the gluing apparatus is continuallydriven. Motor drives main drive shaft l4 through belt60 and pulleyBlank-feeding mechanism Operation of the blank-feeding mechanism, withthe exception of main feeding roll- 68 which is driven from gear66through idler 69,-is conends of a. guide roll 49 coacting with thegluing" trolled by cam 2| actuating rock shaft 20. Rock 7 Initiallyengages shaft 28 has secured thereto a pair of arms 18 the upper ends ofwhich rotatably support a vacuum pick-up tube 1I an end of whichprojects through a slot 12 in the frame member I3 and is flexiblyconnected, as at 13, with a source of suction. Cam 2|, is connected ondemand to gear 85 through a single revolution clutch mechanism 14tripping of which is 'eifected' through a linkeandlever mechanismoperated from the wrapping machine and indicated generally at 15.In'Flg. 2 the cam is illustrated in what maybe the rest position, atwhich it is halted upon completion 01' each revolution of clutch ",thecorresponding position of the associated mechanism being shown in Fig.4. In this position of the mechanism the suction nozzles 18 of vacuumtube II are arranged above and directed downwardly toward the stack 01'blanks B from which'individual blanks are to be fed to the glue-applyingmechanism, being held in this position by engagement of a pinion 11 ontube 1| with a rack 18 secured to the frame member I2. Initial movementof the cam shifts the tube 1| in the direction of the arrow of Fig. 21,this movement bringing the mechanismlto the position shown in Fig. 7,and bringing one arm 18 of a toggle mechanism, generally designated at88, into engagement with the cam 8I and tripping the toggle mechanismcauses closure of a valve 82 normally open to the atmosphere therebyinstituting suction in the vacuum tube II; The succeeding movement 01the cam reverses the direction of operation of the tube and thisreversed operation rotates the tube to cause the same to pick up,through nozzles 18, the top blank of the pile and elevate the forwardedge thereof. The continued rearward movement of the tube completes theV feeding of the blank and finally brings the second arm 83 of togglemechanism 88 into engagement with a cam 84 which trips the'toggle andopens the valve-82 breaking the vacuum to release the blank. The finalmovement of'the'cam restores the tube 1I to'the. rest positionillustrated in Fig. 4.

The tube 1I includes a constantly open central nozzle and a plurality ofnozzles arranged at either side thereof which are controlled by a valvemechanism comprising a smallrod 88 extending longitudinally of the boreof tube TI and equipped with segmental valve elements 88 for controllingthe nozzles. As more clearly seen from a comparison of Figs. 15, 16 and17, these valve elements are so constructed that one, or three of theside nozzles of the tube may be opened as desired. The end of the rod isprojected through one end of tube H and equipped with an operating knob81 having apointer 88 coacting with a, dial 88 serving as an indicationas to which of the nozzles is eflective.

Plvotally supported upon arms 18 is a pair of brackets 88 adjustment ofthese brackets about the pivots thereof being effected as by means ofcontrol rods 8|. Rotatably mounted in the upper ends of brackets 88 isan idler feeding r011 82 and pivotally supported from the shaft of thisroll is a feed plate edge of the feed plate upon which a feed blank maybe maintained at a common horizontal level imparted to the feed rolhcams84 are secured to the standards I2 and I8 and the feed .plate' isequipped with arms 85 having rollers engaged in grooves in these cams.As the mechanism. inmoves rearwardly from the position in Fig. 7, thesuction nozzles elevate the top termed- 83. In order that the forwarddespite the arcuate movement III and bearing a pawl I ratchet wheel II3blank 0! the'lpile and feed'the blank upwardly between the forwardedgeof feed plate .88 and the main or driven feed roll 88. As therearward motion continues, the forward edge of the blank is clampedbetween the driven feed roll and idler feed roller 82 and thus fedbetween the gluin roll 28 and the guide roll 488 The blank is removedfrom the gluing roll by the doctor blades 58, coining to rest uponconveyer I8 by which it is delivered to the wrapping machine.

Blank level control the shaft is an arm having its terminal inclined camI88 I84 bearing a trip I85 and adapted for coactlon with an which, aftera predetermined rearward movement of the paper-feeding mechanism, causesthe arm I84to depress and thus elevate the feeler from the stack. Thissame depression releases the trip I88 from engagement with a pawl I81which controls the feed of the blanks upwardly provided the same shallhave been engaged by the trip. If the level of the blank stack issuillciently low, spring I82 will cause an elevation of the trip to apoint such that it will engage the lower end of the pawl,

an oscillatory pawl carrier I I 8 pivoted about shaft I2 coacting with asecured to shaft III. This likewise associated therewith a The tail. II8of the ratchet wheel has hold ing pawl I I4.

tion of the stack level at the time when deter.-

' Operation In the operation of the machine, the gluingmechanism, as

previously stated, operates-com I88 coacting with a segment I8I- portionof the gluing 1 tion of Fig. 2. In this I provided this fluid is:tinuously to apply a thinlayer of glue to the giuing roll 26. Assumingthat theparts are in the position illustrated in Figs. 2' and! and thatinto operation, time being substantially vertically directed andextending downwardly to the upper surface of the blank stack; Continuedoperation of the ,cam 2| causes a rearward movement of the blank-feedingmechanism accompanied by a pro- 3 tation of the tube H in the directionof the ar j rows of Figs. 8 and 9. This motion results in the blankbeing picked up and elevated into engagement'with the main feedingroller 68, following which the idler feed roller 92 clamps the blank tothe main feeding roller and causes it to be fed between gluing roll 26and guide roll 49. The paper-feeding mechanism then returns to itsnormal position illustrated in Figs.

2 and 4. The glued blank is doctored from the gluing r011 by blades 50and is removed by conveyor l0. V I

In the event it becomes necessary to cleanse the gluing or glue-applyingrolls, or any other mechanism, the operator through hand-wheel-operatedworm. 22 shifts the gluing mechanism to the dotted line posiposition ofthe mechanism, as more clearly shown in Fig. 2, the roll 21 is partiallyimmersedin the washing fluid, at its normal level. Should below itsnormal level,- the this time will be immersed the fluid be slightlybuckets 29, which at 1 in the liquid of the washing fluid container, al-

though ineifective to actually distribute liquid across the face of theroll 21 through a baling action, will set up a wave action of the liquidv in the container, bring the surface thereof into contact with thisroll. Liquid picked up by the roll 21 will serve to cleanse the surfaceof the same and will be transmitted to the roll 26, likewise, cleansingthis roll. Obviously, the immer either of saidvpositions.

3. In gluing apparatus, a roll, a receptacle for glue, a receptacle fora washing fluid, means sion of the buckets in the cleansing liquid willcleanse the same. Attention is directed to the fact that with the partsin the dotted line position of Fig. 2, all portions of the mechanismwhich are subjected to collection 'of glue are made readily accessiblesince at this time the main feed roll, and idler feedrolls will be fullyexposed. 7 r

In some cases it may become desirable to reg ulate the point at whichthe suction nozzles come into effective engagement with the blank. Thismay be accomplished by making rack 18 adjustable upon a curved track H9.Longitudinal adjustment is attained through screw I20, and adjustmentretained through 'a wedging screw HI. 7 7 'Since the structureillustrated is, obviously, capable of considerable modification withoutdeparting not wish to be understood as limiting myself thereto except ashereinafter claimed.

I claim: 1. In gluing apparatus of the type described, astationary'receptacle for glue, a stationary receptacle for a washingfluid, a gluing roll, means to selectively arrange the roll above eitherreceptacle, means to supply liquid from either of said receptacles tothe roll, means to rotate the roll in either, of said positions, andmeans from the spirit of the invention, 1. do v to selectively positionthe roll above either receptacle, means moving with said roll fromeither to the other of said positions to supply liquid from either'ofsaid receptacles to the roll, and a common means for rotating the rolland operating the liquid-supplying meansin both said positions. 7 r l 4.In gluing apparatus of the type described, a stationaryreceptacleforglue, a stationary receptacle for a washing fluid, a roll positionablealbove either receptacle, means to supply liquid from either of saidreceptacles to the roll, means to rotate the roll in either of saidpositions, means to operate theiiquid-supplying means in either of saidpositions, stationary blank feeding means with which the roll isassociated when operatively positioned above the glue receptacle,andmeans to move the roll to either of said positions or to anyintermediate position therebetween. r

5. In gluing apparatus of the type described, an assembly comprising agluing roll, a glueapplying roll associated with the gluing roll toapply liquid thereto, a stationary glue receptacle, a stationary washingfluid receptacle, means to selectively position the assembly above saidreceptacles, means, to rotate the rolls of the assembly when associatedwith either receptacle, and means to transfer liquid from eitherreceptacle to the gluing roll.

6.;In, luing'apparatus of the-type described, an assembly comprising agluing .roll, a glue-applying roll associatediwith the gluing rolltoapply liquid thereto, a glue receptacle, a washin fluid receptacle,means to selectively position the assembly above said receptacles, meansto rotate the rolls of the assembly when. associated with eitherreceptacle, the assembly when positioned above the glue receptaclehaving both said rolls arranged abov the level thereof, and whenpositioned above the washing fluid receptacle having said glue-applyingroll partially immersed therein, and means for supplying glue'fro-m theglue receptacle to' the glue5applying roll when said assembly ispositioned above said glue 1'87- ceptacle.

7. In gluing apparatus of the type described,

an assembly comprising a gluing roll, a glue-' therein, and means forsupplying glue from the gluereceptacle to the glue-applying roll whensaid assembly is positioned above said glue receptacle comprising anoscillatory bucket element which when the assembly isdisposed above thewashing fluid receptacle is immersed in the i washing iluidg i 8. Ingluing apparatus'oi the type described,

an assembly'comprising a gluing roll, a glue-applying roll"associated'with'the gluing roll toape ply liquid thereto, a gluereceptacle, awashing fluid receptacle, means to selectively position theassembly above said receptacles, means to rotate the rolls of theassembly whenassociated with either receptacle, the assembly whenpositioned above the glue receptacle having both said rolls arrangedabove the levelthereof, and when positioned above the washingfluid-receptacle having said glue-applying roll partially immersedtherein, means for supplying glue from the glue receptacle to theglue-applying roll when said assembly is positioned above said. gluereceptacle comprising an oscillatory bucket ele-, ment which when theassembly is disposed above the washing fluid receptacle is immersed inthe washing fluid, a shaft bearing said oscillatory member, and aquadric crank train connecting one of said rolls and said shaft andadapted to move the bucket elements toward theglue-apply ing roll withan accelerated motion.

9. In apparatus of the type described, a roll,

and means to doctor a sheet from the roll comprising a support adjacentthe roll, a plurality of members adjustable longitudinally of thesupport, a blade oscillatably mounted upon each of said members, and aspring extending between each blade and its associated member, themember having a notch, and said spring when engaged in said notch urgingthe blade toward the roll, and when disengaged from said notch, re-

leasing pressure on the blade andacting to hold the blade in anyselected position. v 10. In gluing apparatus of the type described,

an assembly comprising a gluing roll, a glueapply liquid thereto, aglureceptacle, a washing fluid receptacle, means to selectively positionthe assembly above said receptacles, means to rotate the rolls of theassembly when associated with either receptacle, the assembly whenpositioned above the'glue receptacle having both said rolls arrangedabove the level thereof, and when positioned above the washing fluidreceptacle having said glue-applying roll partially immersed therein,and means for supplying glue from the glue receptacle to theglue-applying roll'when said assembly. is positioned above said gluereceptacle, the last named means being immersed in the washing fluidwhen the assembly is positioned in operative relation to the washingfluid receptacle.

12. In apparatus of the type-described, a roll, and means to strip asheet from the roll comprising a support adjacent the roll, a pluralityof members adjustable longitudinally of the support, a stripper bladeoscillatably mounted upon each of said members, and a spring extendingspring when engaged in-s'aid notch andagainst the end wall'thereoiurgingthe stripper blade toward the roll, antle when-disengaged iromsaid notch, releasingpressure on the stripperjblade' and actingtohol'dithe blade in any selected position, said member being rot'atablyadjustable, to

thereby regulate the pressure engagement between the blade and roll. V

13. In a paratus or the type described, alroll, and means to strip asheet from the roll comprising a supp rt adjacent the roll, a pluralityof members on the support, a stripper blade oscillatab-ly mounted uponeach of said members, and an elastic element extending between eachblade and its associated member, said elastic element having engagementwith the blade and member in one relative position of the blade andmember exerting pressure urging the blade toward the roll, and in allotherrelative positions thereof acting to release such pressure on theblade; 7

14. In apparatus of the type described, a roll, and means to strip asheet from the roll comprising a support adjacent the roll, a pluralityof members on the support, a stripper blade oscillatably mounted uponeach of said members, and an elastic element extending between eachblade and its associated member, said elastic element having engagementwith the blade and member in one relative position of the blade andmember exerting pressure urging the blade toward the roll, and in allother relative positions thereof acting to release such pressure on theblade and in certain of such relative positions to hold the blade in theselected position.

15. In gluing apparatus of the type described, a stationary receptaclefor glue, a stationary receptacle for a, washing fluid, a rollpositionable above either receptacle, means to supply liquid from eitherof said'receptacles to the roll, means to rotate the roll in either ofsaid positions, means to operate, the liquid-supplyin means in either ofsaid positions, blank feeding means with which the roll is associatedwhen operatively positioned above the glue receptacle, and means to movethe roll to either oi said positions o to any intermediate positiontherebetween, said blank feeding means including a roll directlycooperating with the first-named roll and moving therewith as thefirst-named roll is shifted to position it above either receptacle.

16. In gluing apparatus of the type described, a stationary receptaclefor glue, a stationary receptacle for a washing fluid, a rollpositionable above eithe receptacle, means to supply liquid from eitherof said receptacles to the roll, means to rotate the roll in either ofsaid positions.

means to operate theliquld-supplying means in either oi. said positions,stationary blank reeding means with which theroll is;associatedwhennoperatively positioned above the glue receptacle, and means to move theroll to either of said positions. a

'17. In, gluing apparatusoi the, type described, a stationary receptaclefor glue, a stationary receptacle for a washing fluid, a rollpositionable above either receptacle, means to supply liquid from eitherof said receptacles to the roll, means to rotate the roll in either orsaid positions, means to operate the liquid-supplying means'in either ofsaid positions, blank feeding means with which the roll is associatedwhen operative y p sitioned above the glue receptacle, and

between each stripper blade and its associated member, the member havinga notch, and said 6, p 2,368,769 7 means'to move the roll to either ofsaid posibers, and an elastic element extending hetween tions, saidblank feeding means including a roll each blade and its associatedmember, said elasdirectly cooperating with the first-named roll ticelement having engagement with the vblade and moving therewith as'thefirst-named roll is and member in one relative position of the bladeshifted to position it above either receptacle. 5 and member exertingpressure u rging the blade 7 8- In anparatusof the type descri ed, aroll. toward the roll, and in certain relative posiand meansto strlp asheet from the roll comtions thereof acting to hold the blade in a,se'-. pri in 8- supp rt adi T 'p y lected position where it is inselected relation of members on the support, a. stripper blade to theroll. oscillatably mounted upon each of. saidvmem- 1 f V J. HAESSLER,

